Hi All,

 

When Proxy (CSP) record-routes and adds the IP Address and port in the
Record-Route, should it add the transport also in the Record route in
this case?

Here the Proxy decided to add the IP Address in stead of domain names.

If the transport parameter is not added, ACK request or any further
request will come on the IP Address and port as specified on the
Record-Route but not on the particular Transport( if Proxy does not
specify the transport in the Record-Route).The original INVITE is sent
on TCP/SCTP transport.

 

But as per RFC 3261, we should not add the transport in the
Record-Route. The section 16.6 point 4 Para 7 states:  

"The URI SHOULD NOT contain the transport parameter unless the proxy has
knowledge

(such as in a private network) that the next downstream element

that will be in the path of subsequent requests supports that

transport."

 

So please suggest if I want to continue other requests on the same
transport as the Initial INVITE.

 

Regards,

Atul 

 

 

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